It helps that these are veteran guys. Beckwith, Day, and Clausell are all 5th year seniors. Malone is a 4th year junior, and Senior is in his third year --- but remember he enrolled in January so got an extra spring and summer before his redshirt year. So he's been here one semester less than Malone. They've all had the same o-line coach for that entire time.
These guys had about 80 starts between them prior to the season. That's about as much as you could ask for (we had over 90 last year because Gabe Jackson had almost 39 himself). Compare to next year we'll only have about 40 starts between our returning OL.